Lewiston Flag

Lewiston

County Seat:
Yes
Area (mi²):
17.469
State:
Idaho

Lewiston is a city located in Nez Perce County, Idaho. Lewiston has a 2026 population of 34,693. It is also the county seat of Nez Perce County. Lewiston is currently declining at a rate of -0.41% annually but its population has increased by 1.29% since the most recent census, which recorded a population of 34,250 in 2020.

34.7K
Total Population
1,986
Density (mi²)
-144 -0.41%
Growth

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)